Urinary Systems and Electrolytes I

Descrição

FlashCards sobre Urinary Systems and Electrolytes I, criado por J yadonknow em 29-03-2018.
J yadonknow
FlashCards por J yadonknow, atualizado more than 1 year ago
J yadonknow
Criado por J yadonknow quase 7 anos atrás
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Resumo de Recurso

Questão Responda
How is total body water portioned? Total = (0.6*BW) ICF = 0.4*BW ECF=0.2*BW ISF=0.75*ECF Plasma = 0.25*ECF
How is the OSP maintained? (4) Solutes/Water must pass through ECF ECF/ICF in osmotic equilibrium Equilibriation of ICF/ECF osmolality occurs primarily due to H2O shifts Plasma and ISF are essentially isosmotic
How do pressure differences change through a capillary? P= HSP of Cap Pi = OSP of Cap P>Pi = net filt. P<Pi = net reabs.
What are the electrolyte compositions of these various fluids? Plasma/ISF similar as only one cell thick barrier Muscle cells can alter their ISF comp. via transport mechanisms.
How is osmoregularity maintained in FW fish? HCO3- <-> Cl- H+ <-> Na+ Water continuously expelled A.T. of monovalent ions against their [ ]' to retain in plasma
Aquaporins speed up h2o movement 12 molecular forms
Transcellular transport -> apical / basolateral membrane
Paracellular transport Across ep. -> IC gaps
What is the reaction for the catabolism of food stuffs? c6h12o6 + 6o2 -> 6co2 + 6h2o
What are the obligatory water losses associated with metabolism? Respiratory - ambient humidity+physio Urinary - pro. catabolism nitro waste Faecal Met. gains - obl. losses = not gain/loss

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